/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */

#ifndef OMNISTREAM_PULLINGASYNCDATAINPUT_H
#define OMNISTREAM_PULLINGASYNCDATAINPUT_H

#include <memory>
#include <optional>
#include <string>
#include "AvailabilityProvider.h"


namespace omnistream {

    template <typename T>
    class PullingAsyncDataInput : public AvailabilityProvider {
    public:
        ~PullingAsyncDataInput() override = default;

        virtual std::optional<std::shared_ptr<T>> PollNext() = 0;

        virtual bool IsFinished() = 0;

        virtual bool HasReceivedEndOfData() = 0;

        std::string toString() override
        {
            return "PullingAsyncDataInput";
        }
    };

} // namespace omnistream

#endif // OMNISTREAM_PULLINGASYNCDATAINPUT_H